用于 PMSM 驱动器的新型稳态电流误差限制器

IF 1 Q3 MULTIDISCIPLINARY SCIENCES

gazi university journal of science Pub Date : 2023-10-04 DOI:10.35378/gujs.1253423

Hemantha Kumar Ravi, Lenın N C

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引用次数: 0

摘要

在永磁同步电机驱动器中，使用磁滞控制器来检测 d-q 电流误差。逆变器根据迟滞控制器的响应进行切换，以限制电流误差，从而降低电流纹波。但是，由于电流动态特性较快，在滞后带内切换电流误差变得十分困难。这将导致 d-q 电流纹波和谐波。本文提出了两种电流误差限制方案。在第一种方案中，使用附加控制参数（q 轴电流的动态响应）在带内切换电流误差，从切换表中选择控制空间矢量。而在第二个方案中，设计了一个占空比调节器，以实现最小的 q 轴电流误差。建议的工作在 MATLAB/Simulink 中进行了模拟，并通过实验进行了验证。由于电流纹波和谐波也降低了，因此还研究了这些性能参数对功率逆变器的热影响。

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New Steady State Current Error Limiters for PMSM Drives

In permanent magnet synchronous motor drives, d-q current errors are examined using hysteresis controllers. The inverter is switched based on the hysteresis controller responses, to limit current errors, and thereby reducing current ripple. But, due to the faster current dynamic characteristics, switching the current errors within the hysteresis band becomes difficult. This results in d-q current ripples and harmonics. In this paper, two current error-limiting schemes are proposed. In the first scheme, current errors are switched within the band using additional control parameters (dynamic response of q-axis current), to select the control space vector from a switching table. Whereas in the second scheme, a duty ratio regulator is designed to achieve minimum q-axis current error. The proposed works are simulated in MATLAB/Simulink and verified through experimentation. Since the current ripple and harmonics are also reduced, the thermal impact of these performance pa-rameters on the power inverter is also studied.

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来源期刊

gazi university journal of science MULTIDISCIPLINARY SCIENCES-

CiteScore

1.60

自引率

11.10%

发文量

期刊介绍： The scope of the “Gazi University Journal of Science” comprises such as original research on all aspects of basic science, engineering and technology. Original research results, scientific reviews and short communication notes in various fields of science and technology are considered for publication. The publication language of the journal is English. Manuscripts previously published in another journal are not accepted. Manuscripts with a suitable balance of practice and theory are preferred. A review article is expected to give in-depth information and satisfying evaluation of a specific scientific or technologic subject, supported with an extensive list of sources. Short communication notes prepared by researchers who would like to share the first outcomes of their on-going, original research work are welcome.